N1013K Single‑Row Cylindrical Roller Bearing 65x100x18 Tapered Bore 1:12

1. Product Overview

N1013K is single‑row precision cylindrical roller bearing. Dimensions: 65 mm bore × 100 mm outer diameter × 18 mm width.
Suffix explanation:
‑ N: Inner ring with two integral ribs, outer ring without ribs; allows free axial displacement between shaft and housing, used as floating bearing to compensate shaft thermal expansion.
‑ K: 1:12 tapered inner bore, can be mounted onto tapered shaft or fitted with adapter sleeve for installation on cylindrical shaft, easy to adjust radial internal clearance during assembly.

Separable construction: inner‑ring‑roller‑cage assembly can be disassembled from outer ring for convenient mounting and inspection. Cage‑guided cylindrical rollers reduce friction for high‑speed operation. Made of fully quenched GCr15 bearing steel. Mainly bear heavy pure radial load, cannot carry axial load. Widely applied for machine‑tool spindles, large‑size industrial motors, gearboxes, compressors and high‑speed rotary equipment requiring floating‑end support and clearance adjustable installation.

2. Technical Specifications

Model: N1013K
Inner bore d: 65 mm (1:12 tapered bore)
Outer diameter D: 100 mm
Width B: 18 mm
Min fillet radius r: 1.1 mm
Basic dynamic radial load Cr: 41 kN
Basic static radial load C0r: 51 kN
Grease limiting speed: 7000 r/min
Oil lubrication reference speed: 8800 r/min
Single‑unit weight: 0.44 kg
Structure: N‑type (two ribs on inner ring, rib‑free outer ring, floating bearing)
Bore type: K 1:12 tapered bore
Cage: Polyamide / brass cage optional
Material: GCr15 bearing steel, hardness HRC60‑65
Operating temperature range: ‑20℃ ~ 120℃
Mounting‑shoulder drawing, adapter‑sleeve selection guide and performance test reports can be provided upon customer request.

3. Core Advantages

• 1:12 tapered bore (K suffix): Realize on‑site clearance adjustment by pushing bearing along tapered shaft; compatible with adapter sleeve for cylindrical‑shaft installation, flexible for different fit requirements.
• N‑type floating‑bearing design: Outer ring without ribs permits bidirectional axial sliding, effectively absorbs shaft thermal elongation, prevents bearing locking caused by temperature rise.
• Separable inner‑ring roller assembly, easy installation, disassembly and inspection without removing housing components.
• High radial rigidity and heavy radial load‑carrying capacity, suitable for high‑speed heavy‑radial‑load working conditions; not for axial load.
• Super‑finished raceway and roller surfaces, low friction, low heat generation, stable high‑speed running performance for motor‑and‑spindle‑class equipment.
• GCr15 overall quenched bearing‑steel, stable metallographic structure, excellent anti‑fatigue and wear‑resistant performance for cyclic‑load operation.
• Standard ISO metric dimension, fully interchangeable with global N1013K bearings, direct replacement without housing modification.
• Rich custom options: P0/P6/P5 precision grade, multiple clearance groups, brass cage variant, OEM outer‑ring laser marking, neutral export anti‑rust carton, special‑temperature grease filling.

4. Application Scenarios

N1013K 1:12‑taper‑bore single‑row cylindrical‑roller floating bearing is high‑rigidity radial‑load‑only rotary spare‑part for 65 mm‑shaft high‑speed industrial‑equipment:

• Machine‑tool spindle floating‑end support bearing assemblies
• Large‑size high‑speed industrial motor floating‑position bearing units
• Heavy‑duty gearbox intermediate‑shaft floating support points
• Air compressors, turbo‑machinery rotary support positions
• Other high‑speed equipment requiring thermal‑expansion compensation and adjustable‑clearance mounting

Aftermarket interchangeable N10‑series tapered‑bore cylindrical roller bearing
High‑rigidity floating‑end bearing solution for spindle manufacturers, large‑motor OEMs and industrial‑equipment bulk‑maintenance procurement.

5. Why Choose GQZ Bearing

• 25‑years manufacturing experience of N‑series single‑row cylindrical roller bearings including N1013K.
• N1013K is dimension‑for‑dimension interchangeable with international‑standard counterparts, consistent load‑rating, 1:12‑taper‑bore tolerance and cage‑performance standards.
• Complete OEM & ODM custom service covering multi‑precision‑grade, multiple‑clearance‑groups, brass‑cage variant and special‑temperature‑resistant grease filling.
• Strict pre‑shipment QC: GCr15 raw‑material metallurgy & hardness inspection, roller‑sorting, long‑cycle high‑speed rotation aging test, radial‑rigidity simulation‑test.
• Professional cylindrical‑roller‑bearing engineering team provides one‑on‑one radial‑load‑matching calculation, adapter‑sleeve selection guidance and tapered‑bore installation tips within 24 working hours.
• Large‑scale production workshop offers competitive factory‑direct bulk‑wholesale price, stable long‑term supply for global spindle, motor and gear‑box spare‑part buyers.
• We focus on N‑series floating‑end cylindrical roller bearings, 1:12‑taper‑bore adjustable‑clearance design, ISO‑standard metric dimensions, pursuing win‑win long‑term cooperation with high‑speed industrial‑transmission‑equipment suppliers.

6. Quality Control

• Raw‑material chemical‑composition, internal‑defect and hardness inspection for GCr15 inner‑ring, outer‑ring and cylindrical‑roller blanks
• Precision turning, multi‑time stress‑relief tempering, ultra‑precision super‑finish grinding for inner‑ring tapered bore and raceway surfaces
• Cylindrical‑roller high‑temperature quenching, mirror‑polishing and high‑precision auto‑sorting production‑line
• Cage forming & finishing assembly, tapered‑bore taper‑tolerance one‑by‑one inspection, pre‑grease processing
• Targeted performance‑tests: N1013K long‑cycle high‑speed temperature‑rise rotation aging test, radial‑rigidity anti‑fatigue wear‑detection
• Full re‑check for dimension‑tolerance, taper‑bore accuracy, raceway surface‑finish before anti‑rust‑oil coating and export moisture‑proof‑carton packing.

Each production batch of N1013K undergoes motor‑spindle‑simulation cyclic‑rotation test to guarantee stable high‑rigidity floating‑support performance for 65‑mm‑shaft high‑speed industrial‑transmission‑systems.

7. Get A Quote Now

If you need N1013K 65x100x18 1:12‑taper‑bore single‑row cylindrical‑roller floating bearings for spindle / large‑motor manufacturing, gear‑box‑assembly and industrial‑equipment‑maintenance bulk‑matching, send your purchase‑inquiry directly.
Full professional supporting‑services after inquiry submission:

• Official formal quotation reply within 24 working‑hours
• One‑on‑one radial‑load‑matching calculation, adapter‑sleeve selection guidance and tapered‑bore installation technical‑support from professional‑bearing‑engineers
• Custom‑bearing‑performance‑upgrade options including multi‑precision‑grade and alternative‑cage material
• Favorable factory‑direct bulk‑wholesale price for large‑volume N1013K single‑model‑orders

Please provide purchase‑quantity, working‑conditions (high‑speed / radial heavy‑load / vibration) and continuous‑operating‑temperature to get detailed official‑quotation‑documents.

8. FAQ